“The fact of the matter is that very wealthy people that are flying helicopters, to and fro, in a way that the thousands of New Yorkers who were seated there, trying to enjoy an evening of free theater, were not able to hear what the actors were saying,” Nixon told reporters outside the 72nd Street West Side IRT Station.

“So that was changed, as it should have been.”

She described the decades of public performances of the Bard’s classics as “one of the great free things that we do for New Yorkers.”

Nixon — a longtime ally of Mayor Bill de Blasio — forwarded emails she received from the artistic director of the Public Theater, which produces “Shakespeare in the Park,” about the roaring whirlybirds to City Hall.

Shortly after receiving the complaint, mayoral aides told Nixon they reached out to federal aviation officials, who control the city’s airspace.

Those exchanges were included in the more than 1,300 pages of emails that Nixon and wife Christine Marinoni, a former special adviser with the city Department of Education, traded with de Blasio and other City Hall aides.